It's B because Miss Sullivan wouldn't give up on Helen. She taught her words by letting her feel the objects and then spelling them in her hands.
Answer:
Underline "things" and "is"
Explanation:
Its a compound sentence because they are two independent clauses being joined together by a comma. they can also be joined together by a semicolon or conjunction
The Battle of the Wilderness, fought May 5–7, 1864, was the first battle of Lt. Gen. Ulysses S. ... Both armies suffered heavy casualties, around 5,000 men killed in total, a harbinger of a bloody war of attrition by Grant against Lee's army and, eventually, the Confederate capital, Richmond, Virginia.
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Hope this helps ;)